BS EN 13523-20:2020 pdf free.Coil coated metals - Test methods,Foam adhesion. BS EN 13523-20 This document describes a laboratory method for testing foam adhesion to an organic coating on a metallic substrate under dry and wet conditions.The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this...
BS EN 13523-22:2017 pdf free
BS EN 13523-22:2017 pdf free.Coil coated metals-' Test methods.C olour difference - Visual comparison. BS EN 13523-22 This part of the EN 13523 series specifies the procedure for determining the difference in the colour of an organic coating on a metallic substrate by visual comparison against a standard using either diffuse natural daylight or artificial daylight in a standard booth.NOTE...